mesa: Changes to 'master'

[Brian Paul]

 src/mesa/main/buffers.c     |   93 ++++++++++++++++++++++++++++++++++++++++----
 src/mesa/main/buffers.h     |    9 +++-
 src/mesa/main/context.c     |    7 +++
 src/mesa/main/fbobject.c    |   21 +++++++--
 src/mesa/main/framebuffer.c |   72 ++++++++++++++++++++++------------
 src/mesa/swrast/s_span.c    |    2 
 6 files changed, 165 insertions(+), 39 deletions(-)

commit diffs at http://gitweb.freedesktop.org/?p=mesa/mesa.git;a=summary

New commits:
commit 32d86eb28aedd01a03ceab746214a8db2a4cbbab
Author: Brian <brian.paul at tungstengraphics.com>
Date:   Thu Aug 16 18:52:48 2007 +0100

    Rework the GL_READ_BUFFER, GL_DRAW_BUFFER state repairs that Roland previously did.
    
    Basically, in update_framebuffer() (which should be called after an FBO is bound
    with MakeCurrent or BindFramebuffer) we check if the FBO is a window-system FBO.
    If it is, update the FBO's GL_READ/DRAW_BUFFER state according to the context state.
    Old code still in place but disabled with #if 0 / #endif.

commit c033ccc36d08c669dcdfbfc1cf89e472e8211c5f
Author: Brian <brian.paul at tungstengraphics.com>
Date:   Thu Aug 16 16:49:35 2007 +0100

    update comments, etc related to Read/DrawBuffer state

commit c5a5d12743b4921ab9c01ee69fa6a06b6b4d716a
Author: Brian <brian.paul at tungstengraphics.com>
Date:   Thu Aug 16 16:43:31 2007 +0100

    remove reference to ctx->Color.DrawBuffer